| Executive Cabs Rugby Ltd | Transport & logistics | 2023 |
| Executive PA Solutions Limited | Administrative & support | 2022 |
| Exergyn UK Ltd | Professional & scientific | 2022 |
| Exeter Peri Peri Ltd | Hospitality | 2023 |
| Exhall Transport Limited | Transport & logistics | 2017 |
| Exit N Limited | Transport & logistics | 2017 |
| EXL Drivers Ltd | Education | 2025 |
| Exodus Trade and Investment Ltd | Professional & scientific | 2018 |
| Expert Neuroimaging Services Ltd | Other services | 2023 |
| Expert Professional Solutions Ltd | Information & communication | 2013 |
| Exxel Outdoors UK Ltd | Manufacturing | 2019 |
| Eyanat Rugby Ltd | Hospitality | 2024 |
| Eyebrow Threading Bar Limited | Other services | 2014 |
| Eyespealed Services Ltd | Professional & scientific | 2020 |
| EZ Rost Ltd | Administrative & support | 2017 |
| Ezay Shop Ltd | Wholesale & retail | 2012 |
| EZEKIELTHE1ST Ltd | Information & communication | 2024 |
| EZY Click Ltd | Wholesale & retail | 2016 |
| F & C (Midlands) Limited | Real estate | 2015 |
| F & I Estates Ltd | Real estate | 2025 |
| F & S Installations Limited | Construction | 2003 |
| F F Tilers Ceramic Tiles Limited | Construction | 2012 |
| F&C Stratford-Upon-Avon Limited | Real estate | 2013 |
| F.E.W Properties Ltd | Real estate | 2021 |
| FAE2 Contractors Ltd | Information & communication | 2025 |
| Fagus International Ltd | Information & communication | 2023 |
| Fair & Square Resource Management Ltd | Real estate | 2014 |
| Fair Action UK Ltd | Extraterritorial | 2023 |
| Fajira's Concept Limited | Wholesale & retail | 2023 |
| Falcon Blaze Limited | Transport & logistics | 2025 |
| Falcon Collective LLP | | 2007 |
| Falkingham Limited | Extraterritorial | 2018 |
| FAM Motors Ltd | Wholesale & retail | 2025 |
| Fanam Homes Ltd | Real estate | 2024 |
| Faraday Road 1965 Limited | Extraterritorial | 2014 |
| Farcon Global Limited | Wholesale & retail | 2026 |
| Farmhouse Bistro LLP | | 2008 |
| FAST-FOOD2025 Limited | Hospitality | 2025 |
| Fastlane Conveyors Limited | Professional & scientific | 2000 |
| Fastruck Ltd | Transport & logistics | 2012 |
| Fastrun Ltd | Transport & logistics | 2014 |
| Father and BOY Ltd | Hospitality | 2023 |
| Fatra Ltd | Wholesale & retail | 2023 |
| Fawlty Ventures Limited | Financial services | 2022 |
| Faylinn Associates Limited | Financial services | 2007 |
| Fayrose Care Services Limited | Health & social care | 2026 |
| FC Developments (Elms Farm) LLP | | 2026 |
| Fdsl Limited | Transport & logistics | 2023 |
| FDT Developments Limited | Real estate | 2009 |
| FEA2009 Ltd | Information & communication | 2022 |
| Feature Limited | Other services | 2016 |
| Feilden Estates Limited | Real estate | 2021 |
| Feilden Homes Limited | Construction | 2017 |
| Feldon Accountancy Limited | Professional & scientific | 2014 |
| Fellow Velo Ltd | Administrative & support | 2014 |
| Femmessence Ltd | Professional & scientific | 2015 |
| Fenn Lakes KOI N Carp Ltd | Transport & logistics | 2015 |
| Fennec Construction Limited | Construction | 2019 |
| Fennec Estates Limited | Other services | 2007 |
| Fentree Residential Limited | Real estate | 2019 |
| Fergus Deery Sportsground Maintenance Limited | Administrative & support | 2018 |
| Fermented & Pickled Ltd | Manufacturing | 2022 |
| Fern Whelan Ltd | Arts & recreation | 2022 |
| Fernsby Brookes Limited | Administrative & support | 2022 |
| Fhgp Services Limited | Health & social care | 2024 |
| Fields Farm Holdings Limited | Real estate | 2022 |
| FIFTY2NORTH Ltd | Transport & logistics | 2024 |
| FIG Retail Ltd | Wholesale & retail | 2021 |
| Fillings Rugby Ltd | Hospitality | 2026 |
| Filmair (UK) Limited | Administrative & support | 1988 |
| Filtasonix (UK) Ltd | Water & waste | 2005 |
| Final Drive Ltd | Other services | 2022 |
| Final Touch Bodyshop Ltd | Wholesale & retail | 2008 |
| Finance Creator Network Ltd | Professional & scientific | 2026 |
| Finance Foresight Limited | Professional & scientific | 2025 |
| Financial Acumen UK Limited | Administrative & support | 2008 |
| Finch Haulage UK Ltd | Transport & logistics | 2025 |
| Fine Heating and Plumbing Ltd | Construction | 2022 |
| Finemark Management LLP | | 2009 |
| Finer Products and Workwear Ltd | Manufacturing | 2018 |
| Finkcons Ltd | Professional & scientific | 2020 |
| Finpilot Ltd | Professional & scientific | 2025 |
| Fiona Hudson-Kelly Limited | Professional & scientific | 2010 |
| Fiona Hudson-Kelly Training Ltd | Education | 2025 |
| Fiorucci Holdings Limited | Financial services | 2014 |
| Fiorucci Licencing Limited | Wholesale & retail | 2018 |
| Fiorucci Wholesale Limited | Other services | 2015 |
| Fire Door Inspection Solutions Limited | Professional & scientific | 2016 |
| Fire Doors Rite Ltd. | Construction | 2011 |
| Firebrand Green Heat Limited | Manufacturing | 2020 |
| Firepro Safety Ltd | Public administration | 2019 |
| Firewear Ltd | Wholesale & retail | 2025 |
| Firianta Limited | Information & communication | 2025 |
| Firiger Ltd | Professional & scientific | 2015 |
| Firsfield Solar Limited | Energy | 2022 |
| First AID Training MAN Limited | Education | 2023 |
| First Class Frames Installations Limited | Construction | 2002 |
| First Class Frames Manufacturing Ltd | Manufacturing | 2002 |
| First Class Safety Ltd | Other services | 2009 |
| First Impressions Landscape and Gardens Ltd | Administrative & support | 2024 |